:root {
  --ink: #101820;
  --ink-soft: #2a3540;
  --steel: #5c6b78;
  --paper: #eef2f4;
  --paper-deep: #d9e2e8;
  --copper: #b56a2b;
  --copper-deep: #8a4d1c;
  --signal: #0d6e6e;
  --line: rgba(16, 24, 32, 0.12);
  --max: 920px;
  --font-display: "Syne", sans-serif;
  --font-body: "Manrope", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  background:
    radial-gradient(1000px 500px at 8% -8%, rgba(13, 110, 110, 0.14), transparent 55%),
    radial-gradient(800px 420px at 92% 0%, rgba(181, 106, 43, 0.1), transparent 50%),
    linear-gradient(180deg, #f7f9fa 0%, var(--paper) 45%, #e7eef2 100%);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 4vw;
  backdrop-filter: blur(10px);
  background: rgba(247, 249, 250, 0.88);
  border-bottom: 1px solid var(--line);
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-link {
  font-size: 0.9rem;
  color: var(--steel);
  font-weight: 600;
}

.nav-link:hover {
  color: var(--ink);
}

.wrap {
  width: min(var(--max), 92vw);
  margin: 0 auto;
}

.hero {
  padding: 4.5rem 0 2.5rem;
}

.kicker {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
}

.hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 14ch;
}

.hero-lead {
  margin: 0;
  max-width: 42ch;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.hero-meta {
  margin: 1.25rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--steel);
}

.hero-meta span {
  position: relative;
  padding-left: 0.9rem;
}

.hero-meta span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.4rem;
  height: 1px;
  background: var(--copper);
}

.section {
  padding: 2.25rem 0;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.8vw, 1.9rem);
  letter-spacing: -0.02em;
}

.section-lead {
  margin: 0 0 1.5rem;
  max-width: 52ch;
  color: var(--ink-soft);
}

.include-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.include-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
}

.include-list strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 0.15rem;
}

.include-list p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.mark {
  width: 1.55rem;
  height: 1.55rem;
  border: 1px solid var(--signal);
  color: var(--signal);
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 800;
  margin-top: 0.1rem;
}

.rules {
  display: grid;
  gap: 0.9rem;
}

.rule {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.rule:last-child {
  border-bottom: none;
}

.rule dt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
}

.rule dd {
  margin: 0;
  color: var(--ink-soft);
}

.form-panel {
  margin: 1rem 0 4rem;
  padding: 1.75rem 1.5rem 1.5rem;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
}

.form-panel h2 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.55rem;
  letter-spacing: -0.02em;
}

.form-intro {
  margin: 0 0 1.5rem;
  color: var(--ink-soft);
  max-width: 48ch;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--steel);
}

.field input,
.field select {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1px solid #b7c2cb;
  border-radius: 2px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.field input:focus,
.field select:focus {
  outline: 2px solid rgba(13, 110, 110, 0.35);
  outline-offset: 1px;
  border-color: var(--signal);
}

.fieldset {
  grid-column: 1 / -1;
  margin: 0.5rem 0 0;
  padding: 1.15rem 0 0;
  border: none;
  border-top: 1px solid var(--line);
}

.fieldset legend {
  padding: 0;
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}

.fieldset-note {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
  max-width: 52ch;
}

.card-row {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.6fr 0.7fr 0.7fr;
  gap: 1rem;
}

.check {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.check input {
  margin-top: 0.3rem;
}

.form-actions {
  grid-column: 1 / -1;
  display: grid;
  gap: 0.55rem;
  margin-top: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.35rem;
  border-radius: 2px;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.98rem;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--ink);
  color: #f4f7f8;
}

.btn-primary:hover {
  background: var(--copper-deep);
}

.btn-ghost {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}

.fine-print {
  margin: 0;
  font-size: 0.85rem;
  color: var(--steel);
}

.form-error {
  grid-column: 1 / -1;
  margin: 0;
  color: #b42318;
  font-size: 0.92rem;
  font-weight: 600;
  display: none;
}

.form-error.is-on {
  display: block;
}

.success {
  display: none;
  padding: 2rem 0 4rem;
}

.success.is-on {
  display: block;
}

.success h2 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
}

.success p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
  max-width: 48ch;
}

.faq {
  padding: 0 0 3.5rem;
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 0.95rem 0;
}

.faq details:last-child {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  font-family: var(--font-display);
}

.faq p {
  margin: 0.55rem 0 0;
  color: var(--ink-soft);
  max-width: 55ch;
}

.site-footer {
  padding: 2rem 4vw 2.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--steel);
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.35);
}

@media (max-width: 720px) {
  .form-grid,
  .card-row,
  .rule {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3rem;
  }
}